//////////////////////////////////////////////////////////////////////////////
//
// Copyright(C) < 1998 - 2024 > Glodon Company Limited
// Copyright 2003-2023 by Autodesk, Inc. 
//
// Licensed under the MIT License
//
// Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the “Software”), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED “AS IS”, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
//
//////////////////////////////////////////////////////////////////////////////

using System.Globalization;
using System.Windows;
using System.Windows.Data;
using System.Windows.Markup;


#if Gdmp || Gnuf
#elif Gap
using Glodon.Gap.UI;
#endif
using Glodon.Lookup.Core.ModelBase;
using Glodon.Lookup.Models;
using Glodon.Lookup.Services.Enums;
using Glodon.Lookup.Utils;
using Glodon.Lookup.Views.Markup;

namespace Glodon.Lookup.Views.Converters
{
    public sealed class TreeViewGroupConverter : MarkupExtension, IMultiValueConverter
    {
        private bool IsTabObject(SnoopableObject snoopableObject, DataTabType dataTab)
        {
            return snoopableObject.Descriptor.Type.Equals(dataTab.ToString(), StringComparison.Ordinal) &&
                            (dataTab == DataTabType.Document || dataTab == DataTabType.ModelView);
        }

        public override object ProvideValue(IServiceProvider serviceProvider)
        {
            return this;
        }

        public object Convert(object[] values, Type targetType, object parameter, CultureInfo culture)
        {
            try
            {
                if (values[0] == null || values[1] == null)
                {
                    return null;
                }
                var tab = (DataTabType)values[0];

                IReadOnlyCollection<SnoopableObject>? source = values[1] as IReadOnlyCollection<SnoopableObject>;

                var viewSource = new CollectionViewSource
                {
                    Source = source
                };
                //对分组进行自定义排序
                (viewSource.View as ListCollectionView)!.CustomSort = Comparer<object>.Create((x, y) =>
                {
                    try
                    {
                        if (x is not SnoopableObject xs || y is not SnoopableObject ys)
                        {
                            throw new ArgumentException($"ListCollectionView自定义排序只支持{nameof(SnoopableObject)}");
                        }
                        if (IsTabObject(xs, tab) && IsTabObject(ys, tab))
                        {
                            return 0;
                        }
                        if (IsTabObject(xs, tab))
                        {
                            return -1;
                        }
                        else if (IsTabObject(ys, tab))
                        {
                            return 1;
                        }
                        else
                        {
                            if (xs.Descriptor.Type.CompareTo(ys.Descriptor.Type) != 0)
                            {
                                return xs.Descriptor.Type.CompareTo(ys.Descriptor.Type);
                            }
                            if (xs.Descriptor.Name.CompareTo(ys.Descriptor.Name) != 0)
                            {
                                return xs.Descriptor.Name.CompareTo(ys.Descriptor.Name);
                            }
                            if (xs.Descriptor.Description != null && ys.Descriptor.Description != null
                             && xs.Descriptor.Description.CompareTo(ys.Descriptor.Description) != 0)
                            {
                                return xs.Descriptor.Description.CompareTo(ys.Descriptor.Description);
                            }
                            else
                            {
                                if (xs.Descriptor.Description != null)
                                {
                                    return -1;
                                }
                                if (ys.Descriptor.Description != null)
                                {
                                    return 1;
                                }
                            }
                        }
                        return 0;
                    }
                    catch (Exception e)
                    {
                        ExceptionUtils.ShowExceptionMessage(e);
                        return 0;
                    }
                });
                viewSource.GroupDescriptions.Add(new PropertyGroupDescription("Descriptor.Type"));
                if (viewSource.Source is IEnumerable<SnoopableObject> enumerable)
                {
                    if (enumerable.Any() && !enumerable.Any(s => s.IsSelected))
                    {
                        var firstGroup = viewSource.View.Groups.First() as CollectionViewGroup;
                        if (firstGroup != null && firstGroup.Items.Any())
                        {
                            SnoopableObject? snoopableObject = firstGroup.Items.First() as SnoopableObject;
                            if (snoopableObject is not null)
                            {
                                snoopableObject.IsSelected = true;
                            }
                        }
                    }
                }
                return viewSource.View.Groups;
            }
            catch (Exception e)
            {
                ExceptionUtils.ShowExceptionMessage(e);
                return Array.Empty<object>();
            }
        }

        public object[] ConvertBack(object value, Type[] targetTypes, object parameter, CultureInfo culture)
        {
            throw new NotImplementedException();
        }
    }


    public sealed class GroupToIndexConverter : MarkupExtension, IMultiValueConverter
    {
        public object Convert(object[] values, Type targetType, object parameter, CultureInfo culture)
        {
            if (values[0] is CollectionViewGroup)
            {
                CollectionViewGroup group = (CollectionViewGroup)values[0];
                ICollection<object> groups = values[1] as ICollection<object>;
                if (groups != null)
                {
                    for (int i = 0; i < groups.Count; i++)
                    {
                        CollectionViewGroup? collectionViewGroup = groups.ElementAt(i) as CollectionViewGroup;
                        if (collectionViewGroup != null && collectionViewGroup.Equals(group))
                        {
                            return i;
                        }
                    }
                }
            }
            return -1;
        }

        public object[] ConvertBack(object value, Type[] targetTypes, object parameter, CultureInfo culture)
        {
            throw new NotImplementedException();
        }

        public override object ProvideValue(IServiceProvider serviceProvider)
        {
            return this;
        }
    }

    public sealed class DescriptorToVisibilityConverter : MarkupExtension, IValueConverter
    {
        public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
        {
            Descriptor descriptor = (Descriptor)value;
            if (descriptor == null)
            {
                return Visibility.Visible;
            }
            if (descriptor.Type.Equals("Document") || descriptor.Type.Equals("ModelView"))
            {
                return Visibility.Collapsed;
            }
            else
            {
                return Visibility.Hidden;
            }
        }

        public object ConvertBack(object value, Type targetType, object parameter, CultureInfo culture)
        {
            throw new NotImplementedException();
        }

        public override object ProvideValue(IServiceProvider serviceProvider)
        {
            return this;
        }
    }

    public sealed class ItemsSelectedToExpandedConverter : SelfProvider, IValueConverter
    {
        public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
        {
            var items = value as ICollection<object>;
            if (items == null)
            {
                return false;
            }
            else
            {
                var any = items.Any(s => s is SnoopableObject sn && sn.IsSelected == true);
                return any;
            }
        }

        public object ConvertBack(object value, Type targetType, object parameter, CultureInfo culture)
        {
            throw new NotImplementedException();
        }
    }

    public sealed class DataContextToFocusableConverter : SelfProvider, IValueConverter
    {
        public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
        {
            if (value is SnoopableObject)
            {
                return true;
            }
            return false;
        }

        public object ConvertBack(object value, Type targetType, object parameter, CultureInfo culture)
        {
            throw new NotImplementedException();
        }
    }

}
